CVE-2026-106117

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Source
https://cve.org/CVERecord?id=CVE-2026-106117
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106117.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-106117
Aliases
Published
2026-10-06T17:53:46Z
Modified
2026-10-07T10:30:22Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
ImageSharp: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp
Details

ImageSharp is a 2D graphics library. From 3.0.0 until 4.1.1, decoding a strip TIFF using CCITT Group 3 or Modified Huffman compression can pass attacker-expanded runs to BitWriterUtils.WriteBits without first checking the current row width. T4TiffCompression.WritePixelRun can accumulate oversized makeup-code runs, and ModifiedHuffmanTiffCompression.Decompress validates the width only after writing. The unchecked writes can overflow the strip buffer, corrupt heap memory, and terminate the process. This strip-path vulnerability is distinct from the tiled decompressor-width mismatch. This issue is fixed in version 4.1.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106117.json"
}
References

Affected packages

Git / github.com/sixlabors/imagesharp

Affected ranges

Type
GIT
Repo
https://github.com/sixlabors/imagesharp
Events
Introduced
6ec1692ee295923d9d40956befd4417d6735507b
Fixed
0815358f9202a78bc7f3b83e19282dc3654b500f
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "4.1.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v3.*
v3.0.0
v3.0.1
v3.1.0
v4.*
v4.0.0
v4.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106117.json"